Chapter 1-UnitC
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Wave | A disturbance that transfers energy from one place to another.
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| Medium | Any substance that a wave moves through.
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| Mechanical wave | Waves that transfer energy through matter.
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| Transverse waves | The direction in which the wave travels is perpendicular, or at right angels to the direction of the disturbance.
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| Longitudinal wave | The wave travels in the same direction as the disturbance.
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| Crest | The highest point or peak of a wave.
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| Trough | Lowest point or valley of a wave.
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| Amplitude | The distance between a line through the middle of a wave and a crest or trough.
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| Wavelength | The distance from one wave crest to the very next crest.
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| Frequency | The number of wavelengths passing a fixed point in certain amount of time.
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| Reflection | The bouncing back of a wave after it strikes a barrier.
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| Refraction | The bending of a wave as it enters a new mediium.
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| Differaction | The spreading out of waves through an opening or around the edge of an obstacle.
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| Interference | The meeting and combining of waves.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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